Tesla pushed mobile app version 4.57.0 to iOS and Android on 15 May 2026, mirroring the in-car 2026.14 firmware family that has been rolling to vehicles since mid-April. The release is mostly visual polish on the home screen plus a tightening of features parents had been asking for, but it also marks the first time the Grok assistant has shipped outside the car.
Animated Badges Arrive on the Home Card
The vehicle card now plays a short animation when the car is a Performance or Signature Edition. Performance owners see the trim badge glow and pulse in red and carbon textures; Signature Edition owners get a numbered badge that reveals the unit number on tap. The badge animates once on every app launch and again when tapped, with no toggle to disable it for now. Owners of other trims continue to see the standard static car render — no behaviour change there.
Parental Controls Now Lock Track Mode
The app's Parental Controls section, used to limit acceleration and top speed for younger drivers, gains a new toggle in 4.57: when Require Safety Features is enabled, Track Mode is no longer accessible in the car. Tesla published the change as a safety improvement for Performance vehicles that are also used by teen drivers — without it, the existing acceleration and speed caps could be bypassed by switching Track Mode on from the screen.
The restriction sticks at the vehicle level, so a teen driver cannot enable Track Mode locally even with the phone away from the car. Existing speed cap, acceleration cap and Valet Mode behaviours are unchanged.
Grok Comes to the Phone
Grok, the xAI assistant Tesla shipped in vehicles last year via the Spring 2026 update, now appears inside the mobile app as a labelled "Powered by Grok" feedback channel. The integration is limited at launch — owners can ask Grok about app features and send free-form feedback that is tagged for triage — but it confirms the direction of travel: a single voice assistant that follows the owner across the vehicle, the app and (eventually) the website account.
Other Changes in 4.57
| Area | Change |
|---|---|
| Browser, Arcade, Theater | New parental block toggles disable each app individually |
| Charging | AI-driven "Status Feedback" badge during charging summarises faults in plain language |
| Performance Edition | Cards reskinned with the carbon-fibre treatment from the in-car UI |
| Bug fixes | Address-search reliability, Live Activities battery drain on iOS |
Rollout and Compatibility
Version 4.57.0 is a phased rollout across the App Store and Google Play; both stores list 15 May 2026 as the release date. The app requires iOS 16 or Android 10 as before, and most features need vehicle firmware 2025.32 or later. The animated badges and Track Mode lock require 2026.14 in the car to display correctly.
European Owners and Language Packs
4.57 ships to all European App Store and Play Store regions at the same time as the US release — there is no staggered EU rollout this cycle. All ten supported EU languages get the new strings on day one, including the rewritten Parental Controls disclosure that German and Dutch consumer-protection rules require to appear before the feature is enabled. European Performance owners with the Signature Edition Model S Plaid get the same animated badge as US cars; the badge numbering matches the global Signature build, not a regional sub-allocation.
Why It Matters
4.57 is a small release on paper but signals two long-running priorities. Animated badges are part of Tesla's effort to differentiate Performance and Signature trims as it leans on those margins; the Parental Controls tightening closes a gap that has been a recurring complaint on the owners' forums for over a year. And the Grok hook in the app, however minor at launch, is the first step toward making the assistant the default surface for owner-Tesla interactions.